/Engine/Plugins/FX/Niagara/Source/Niagara/Public/MovieScene/MovieSceneNiagaraSystemTrack.h
Called after this track has been compiled, regardless of whether it was compiled through CustomCompile, or the default logic
virtual void PostCompile ( [FMovieSceneEvaluationTrack](API\Runtime\MovieScene\Evaluation\FMovieSceneEvaluationTrack) & Track, const [FMovieSceneTrackCompilerArgs](API\Runtime\MovieScene\Compilation\FMovieSceneTrackCompilerArgs) & Args ) const